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sarsalan

Member

Registered: 2008-11-03

Posts: 16

Function of Multi-Variables

Let  f(x,y) =  (x2-2xy+5y2/3x2-4y2)

a.      Find the domain of f(x,y).

b.      By using different paths, show that whether the limit of f(x,y) exists at the origin or not.

c.       Is the function continuous at origin? Justify your answer.